RESOLVED FIXED232458
Use higher QoS for WheelEvent and DisplayWasRefreshed IPCs 
https://bugs.webkit.org/show_bug.cgi?id=232458
Summary Use higher QoS for WheelEvent and DisplayWasRefreshed IPCs
Chris Dumez
Reported 2021-10-28 15:20:25 PDT
Use higher QoS for WheelEvent and DisplayWasRefreshed IPCs since those are high priority. The UIProcess's main thread has high UserInteractive QoS but the IPC thread has a lower QoS by default. We cannot raise the QoS of the IPC thread without regressing some performance benchmarks since not all IPC is high priority.
Attachments
Patch (12.09 KB, patch)
2021-10-28 15:23 PDT, Chris Dumez 		no flags
DetailsFormatted DiffDiff
Patch (12.24 KB, patch)
2021-10-29 12:42 PDT, Chris Dumez 		no flags
DetailsFormatted DiffDiff
Patch (12.29 KB, patch)
2021-10-29 14:59 PDT, Chris Dumez 		no flags
DetailsFormatted DiffDiff
Show Obsolete (2) View All Add attachment proposed patch, testcase, etc.
Chris Dumez
Comment 1 2021-10-28 15:20:46 PDT
<rdar://82657744>
Chris Dumez
Comment 2 2021-10-28 15:23:24 PDT
Created attachment 442751 [details] Patch
Chris Dumez
Comment 3 2021-10-29 11:20:23 PDT
This is causing WKWebView.PrepareForMoveToWindowThenClose API test to fail. I am investigating.
Chris Dumez
Comment 4 2021-10-29 12:42:51 PDT
Created attachment 442850 [details] Patch
Chris Dumez
Comment 5 2021-10-29 14:59:52 PDT
Created attachment 442867 [details] Patch
EWS
Comment 6 2021-11-02 08:43:06 PDT
Committed r285159 (243795@main): <https://commits.webkit.org/243795@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 442867 [details].
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